Match!

Geology, mineralization, and fluid inclusion study of the Kuru-Tegerek Au-Cu-Mo skarn deposit in the Middle Tien Shan, Kyrgyzstan

Published on Feb 1, 2018in Mineralium Deposita3.397
· DOI :10.1007/s00126-017-0729-5
Serguei G. Soloviev7
Estimated H-index: 7
,
Sergey G. Kryazhev6
Estimated H-index: 6
,
Svetlana S. Dvurechenskaya4
Estimated H-index: 4
Abstract
The Kuru-Tegerek Cu-Au-Mo deposit is situated in a system of Late Carboniferous subduction-related magmatic arcs of the Middle Tien Shan, which together constitute a metallogenic belt of Cu-Au-Mo (±W) porphyry, with local skarns, deposits. The deposit is related to magnetite-series gabbro-diorite to tonalite intrusion. It contains prograde magnesian and calcic skarns with abundant magnetite, associated with gabbro-diorite, and retrograde skarn with Cu mineralization, formed after intrusion of tonalite. Subsequent propylitic alteration introduced abundant chalcopyrite and pyrrhotite, and native Au culminating in zones overprinting magnetite and garnet skarn. Later quartz-muscovite-carbonate veins, formed after intrusion of late mafic quartz monzogabbro dikes, contain chalcopyrite, pyrite, arsenopyrite and other sulfides and sulfosalts, tellurides, and native Au. The earliest retrograde skarn garnet contains gaseous low-salinity (1.7–3.4 wt.% NaCl eq.) fluid inclusions homogenizing at 460–500 °C into vapor, indicating that the early fluid released from crystallizing magma was a low-density vapor. It was followed by more saline (4.0–5.0 wt.% NaCl eq.), high-temperature (400–440 °C) aqueous fluid, as fluid release from the magma progressed. Boiling of this fluid at temperatures of 420 to 370 °C and a pressure of ~350–300 bar produced a low-salinity (0.6–1.2 wt.% NaCl eq.), essentially gaseous, and high-salinity (from ~39 to ~31 wt.% NaCl eq.) brine, with possible metal (including Cu) partitioning into both gaseous and aqueous-saline phases. Boiling was coeval with sulfide deposition in the retrograde skarn. The latest episode of the retrograde skarn stage included direct separation of saline (~40–42 wt.% NaCl eq.) fluid from crystallizing magma. The separation of saline (~40 to ~14 wt.% NaCl eq.) fluids from a crystallizing magmatic melt continued during the propylitic stage, when fluid cooling from ~370 to 320 °C, together with decreasing fO2, caused Cu and especially Au precipitation. A new influx of possibly magma-derived, low-salinity (4.5–6.7 wt.% NaCl eq.) aqueous, and then NaCl-CO2-H2O fluids, corresponds to the phyllic (quartz-muscovite-carbonate-sulfide) stage. These fluids may have a deeper source, associated with the late mafic quartz monzogabbro dikes. Fluid cooling (from ~340 to 255 °C) and boiling of the NaCl-CO2-H2O fluid, together with increased fS2, increased the Au endowment.
  • References (88)
  • Citations (6)
📖 Papers frequently viewed together
1 Citations
19 Citations
78% of Scinapse members use related papers. After signing in, all features are FREE.
References88
Newest
Abstract The Chorukh-Dairon deposit is part of the metallogenic belt of W Mo, Cu Mo, Au W, and Au deposits along the Late Paleozoic active continental margin of the Tien Shan. It is related to the Late Carboniferous multiphase pluton, with successive intrusive phases of early monzogabbro through monzonite-quartz monzonite to monzogranite and leucogranite, and the latest lamprophyre dikes. The deposit is an example of complex W–Mo–Cu magmatic-hydrothermal system related to magnetite-series shosho...
11 CitationsSource
#1D. V. Alexeiev (RAS: Russian Academy of Sciences)H-Index: 16
#2Alfred Kröner (University of Mainz)H-Index: 90
Last. Dunyi LiuH-Index: 72
view all 11 authors...
New geological, geochronological and isotopic data reveal a previously unknown arc system that evolved south of the Kyrgyz Middle Tianshan (MTS) microcontinent during the Middle and Late Ordovician, 467-444 Ma ago. The two fragments of this magmatic arc are located within the Bozbutau Mountains and the northern Atbashi Range, and a marginal part of the arc, with mixed volcanic and sedimentary rocks, extends north to the Semizsai metamorphic unit of the southern Chatkal Range. A continental basem...
40 CitationsSource
#1Weidong Sun (CAS: Chinese Academy of Sciences)H-Index: 48
#2Ruifang Huang (CAS: Chinese Academy of Sciences)H-Index: 6
Last. Ming-Xing Ling (CAS: Chinese Academy of Sciences)H-Index: 22
view all 11 authors...
Abstract Porphyry deposits supply most of the world's Cu and Mo resources. Over 90% of the porphyry deposits are found at convergent margins, especially above active subduction zones, with much fewer occurrences at post-collisional or other tectonic settings. Porphyry Cu–(Mo)–(Au) deposits are essentially magmatic–hydrothermal systems, which are generally initiated by injection of oxidized magmas saturated with metal-rich aqueous fluids, i.e., the parental magmas need to be water rich and oxidiz...
165 CitationsSource
The Kumbel deposit is located within a metallogenic belt of W–Mo, Cu–Mo, Au–W, and Au deposits along the Late Paleozoic active continental margin of Tien Shan. The deposit is related to a Late Carboniferous multiphase pluton, with successive intrusive phases from early olivine monzogabbro through monzonite–quartz monzonite to granodiorite and granite, with the latest monzogabbro–porphyry dikes. The deposit represents an example of a complex W–Cu–Mo–Au magmatic–hydrothermal system related to magn...
22 CitationsSource
#1Thomas Bissig (UBC: University of British Columbia)H-Index: 15
#2David R. Cooke (UTAS: University of Tasmania)H-Index: 34
This special issue is devoted to alkalic porphyry Cu-Au and epithermal Au deposits and focuses on two regions: British Columbia, Canada (Fig. 1), and the Southwest Pacific region (Australia and Papua New Guinea: Fig. 2). The special issue commences with a review of Triassic to Jurassic metallogeny of British Columbia (Logan and Mihalynuk, 2014), then documents ore zones from several alkalic deposits (Central zone, Galore Creek—Micko et al., 2014; Southwest zone, Galore Creek—Byrne and Tosdal, 20...
12 CitationsSource
#1Alfred Kröner (University of Mainz)H-Index: 90
#2Victor Kovach (RAS: Russian Academy of Sciences)H-Index: 10
Last. E. Rytsk (RAS: Russian Academy of Sciences)H-Index: 1
view all 17 authors...
Abstract We argue that the production of mantle-derived or juvenile continental crust during the accretionary history of the Central Asian Orogenic Belt (CAOB) has been grossly overestimated. This is because previous assessments only considered the Palaeozoic evolution of the belt, whereas its accretionary history already began in the latest Mesoproterozoic. Furthermore, much of the juvenile growth in Central Asia occurred in late Permian and Mesozoic times, after completion of CAOB evolution, a...
456 CitationsSource
#1Reimar Seltmann (Natural History Museum)H-Index: 33
#2T. Mike PorterH-Index: 1
Last. Franco Pirajno (UWA: University of Western Australia)H-Index: 49
view all 3 authors...
Abstract Major porphyry Cu–Au and Cu–Mo deposits are distributed across almost 5000 km across central Eurasia, from the Urals Mountains in Russia in the west, to Inner Mongolia in north-eastern China. These deposits were formed during multiple magmatic episodes from the Ordovician to the Jurassic. They are associated with magmatic arcs within the extensive subduction–accretion complex of the Altaid and Transbaikal-Mongolian orogenic collages that developed from the late Neoproterozoic, through t...
104 CitationsSource
#1Richard J. Goldfarb (China University of Geosciences)H-Index: 40
#2Ryan D. Taylor (USGS: United States Geological Survey)H-Index: 8
Last. Omero F. Orlandini (CU: University of Colorado Boulder)H-Index: 3
view all 5 authors...
Abstract The Asian continent formed during the past 800 m.y. during late Neoproterozoic through Jurassic closure of the Tethyan ocean basins, followed by late Mesozoic circum-Pacific and Cenozoic Himalayan orogenies. The oldest gold deposits in Asia reflect accretionary events along the margins of the Siberia, Kazakhstan, North China, Tarim–Karakum, South China, and Indochina Precambrian blocks while they were isolated within the Paleotethys and surrounding Panthalassa Oceans. Orogenic gold depo...
260 CitationsSource
#1Yongjun Lu (UWA: University of Western Australia)H-Index: 19
#2Robert Kerrich (U of S: University of Saskatchewan)H-Index: 55
Last. Suo Han TangH-Index: 1
view all 11 authors...
Coeval potassic adakite-like and shoshonitic felsic intrusions in the western Yunnan province of SW China are spatially and temporally associated with Eocene^Oligocene shoshonitic mafic volcanic rocks. The shoshonitic syenite and quartz monzonite intrusions are characterized by high K2O contents (4·9^6·8 wt %) and K2O/Na2O ratios (1·1^1·7), high Y (1·7^34·8 ppm) and Yb (1·50^3·16 ppm) contents, nearly flat heavy rare earth element (HREE) patterns and moderate Eu anomalies (Eu/Eu*1⁄4 0·65^0·78).T...
75 CitationsSource
#1Andreas G. MuellerH-Index: 17
#2Louisa M. Lawrance (UWA: University of Western Australia)H-Index: 2
Last. Gregory D. Pooley (UWA: University of Western Australia)H-Index: 3
view all 4 authors...
The Hannan South Au-Cu skarn deposit is located 12 km southeast of Kalgoorlie in the 2.7 Ga Eastern Goldfields Orogen of the Archean Yilgarn Craton, Western Australia. Two epidote-quartz-calcite-magnetite orebodies, controlled by the same reverse fault but separated by 450 m, occur in granodiorite porphyry: an Au-Cu skarn in the southeast (30 vol % calcite) and an Au-Co-Bi skarn in the northwest (5–10 vol % calcite). Both are interpreted as remnants of a single eroded body. Regional and skarn pr...
17 CitationsSource
Cited By6
Newest
#1Zhi Zhang (CGS: China Geological Survey)H-Index: 2
#2Zhi-Jun Li (CDUT: Chengdu University of Technology)H-Index: 1
Last. Suiliang Dong (CGS: China Geological Survey)
view all 7 authors...
Abstract The Galale Cu Au skarn deposit is located on the southern margin of the Bangong-Nujiang metallogenic belt, Tibet, and the Cu Au mineralization is related to the Late Cretaceous granodiorite. The orebodies occurring as stratiform, lenticular and vein types are hosted within the skarn along the contact between the granodiorite and dolomitic marble or calcitic marble of the Jiega Formation. At least four hydrothermal alteration stages of the deposit have been recognized: prograde magnesian...
Source
#1Bo Zu (China University of Geosciences)H-Index: 5
#2Chunji Xue (China University of Geosciences)H-Index: 17
Last. Chao LiH-Index: 3
view all 6 authors...
The Alastuo gold deposit, located in the Narati region of the Chinese West Tianshan, is a newly discovered gold deposit within the world-class Tianshan gold belt. The gold mineralization is hosted by an Early Carboniferous granodiorite intrusion and controlled structurally by subsidiary faults of the transcrustal North Narati Fault. The deposit consists of auriferous alteration assemblages and minor vein ores. Field relations and petrographic data suggest four stages of mineralization with gold ...
Source
#1Leilei Dong (CAS: Chinese Academy of Sciences)H-Index: 3
#2Wan Bo (CAS: Chinese Academy of Sciences)H-Index: 23
Last. Keda Cai (China University of Geosciences)H-Index: 2
view all 4 authors...
Abstract Katbasu is a gold (and copper) deposit located in an arc on the southern margin of the Ili-Central Tianshan micro-continent. An in-situ method was conducted to acquire trace element concentrations to elucidate the origins and chemistry of the fluid in the Katbasu deposit. This included oxygen isotopes in quartz, as well as sulfur isotopes and trace elements concentrations in pyrite. Trace elements in gold deficient veins have higher concentrations compared to those in the gold bearing v...
Source
#1Serguei G. Soloviev (RAS: Russian Academy of Sciences)H-Index: 2
#2Sergey G. KryazhevH-Index: 6
Last. Ivan A. StarostinH-Index: 1
view all 6 authors...
Abstract The Lazurnoe porphyry Cu-Au-Mo deposit (>1Mt Cu-eq.) in the Mesozoic Central Sikhote-Alin orogenic belt (Eastern Russia) is located in an Early Cretaceous turbidite basin associated with a crustal-scale strike-slip fault zone, and was formed under the continental transform margin regime after the cessation of active subduction. The deposit is related to a magnetite-series, high-K calc-alkaline to shoshonitic, Early Cretaceous igneous suite that occurred in this tectonic setting, possibl...
2 CitationsSource
#1Serguei G. Soloviev (RAS: Russian Academy of Sciences)H-Index: 2
#2Sergey G. KryazhevH-Index: 6
view all 4 authors...
Abstract The Sinyukhinskoe deposit (>100 t Au with average 9.2 g/t Au) is situated in the Altaid orogenic system and is part of the regional system of Devonian-Carboniferous Cu-Au to Au-Cu porphyry, skarn and other deposits. Productive plutonic suites were emplaced in a Devonian subduction-related continental magmatic arc setting, with its further evolution toward a late- and post-collisional environment in the late Devonian-Carboniferous. The deposit is related to a magnetite-series, I-type mul...
Source
#1Bo Zu (China University of Geosciences)H-Index: 5
#2Reimar Seltmann (AMNH: American Museum of Natural History)H-Index: 33
Last. Xiao‐Bo Zhao (China University of Geosciences)
view all 11 authors...
Abstract The Chatkal-Kurama terrane is the most fertile region for porphyry-skarn Cu-Au mineralization (~31 Mt Cu and 2300 t Au) in the West Tianshan, even though in the Chatkal range of Kyrgyzstan only limited studies have been conducted. We present the first robust geochronological and geochemical data for the important Kuru-Tegerek and Bozymchak skarn Cu-Au mineralization and related magmatism in the Chatkal region. Consistent zircon SHRIMP U-Pb and molybdenite Re-Os ages reveal that the Kuru...
1 CitationsSource
#1Serguei G. Soloviev (RAS: Russian Academy of Sciences)H-Index: 2
#2Sergey G. KryazhevH-Index: 6
view all 3 authors...
Abstract The Meliksu W skarn deposit (∼10Kt WO 3 , with average grade of 6.6% WO 3 ) in the Alai Segment of the Southern Tien Shan is related to an Early Permian granitoid pluton that comprises ilmenite-series to ilmenite-titanite-bearing, medium-K, metaluminous to peraluminous I-type granitoid (monzonite/diorite-tonalite-granodiorite to granite) rocks. There is a regional-scale continuum from these intrusions to transitional weakly reduced to weakly oxidized metaluminous I-type granitoid suites...
Source
#1Serguei G. Soloviev (RAS: Russian Academy of Sciences)H-Index: 2
#2Sergey G. KryazhevH-Index: 6
view all 3 authors...
Abstract The Maikhura W-Sn skarn deposit is situated in the Gissar Segment of the Southern Tien Shan. It associates with a Late Carboniferous-Early Permian composite granitoid pluton, which includes earlier ilmenite-series, transitional metaluminous to peraluminous, I-type granodiorite, and later magnetite-series, biotite to biotite-tourmaline granite/leucogranite. The oxidized granitic intrusions exhibit A-type granite affinity and define a geochemically and genetically distinct group of W-Sn d...
2 CitationsSource
Abstract The Saryjaz ore district relates to the Tien Shan Metallogenic Belt in the eastern part of the Kokshal segment of the Tien Shan collisional belt. The regional structure is known as the Saryjaz syntaxis, also partially capturing the Middle and South Tien Shan. The ore district was formed during multiple changes of tectonic regimes in relation to subduction of the Turkestan Ocean in the Silurian to the Carboniferous, to the collision of the Kazakh and Tarim continents in the late Carbonif...
2 CitationsSource